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Distributed series connection type hybrid power system

A series hybrid and power system technology, applied in electric traction, electric vehicles, traction driven by engines, etc., can solve the problems of not considering the reliability of the power generation link, realizing redundancy, and difficult installation

Inactive Publication Date: 2007-07-04
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent adopts a backup method for the inverter and drive motor system to achieve redundancy, and does not consider how to improve the reliability of the power generation link; moreover, the use of the system backup method is likely to increase the volume and weight, and it is difficult to install in the narrow space of the vehicle

Method used

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  • Distributed series connection type hybrid power system
  • Distributed series connection type hybrid power system
  • Distributed series connection type hybrid power system

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Embodiment Construction

[0030] Fig. 5 shows the distributed motor driving link of the present invention. The inverters of the two motor drives are connected to the two drive motors through a contactor box with controllable switches. The three-phase power output a11, b11, c11 of the inverter 1 is connected to the power input end of the contactor box C, and the power output end a12, b12, c12 of the contactor box C is connected to the three-phase winding of the motor M1; the inverter The three-phase power output a21, b21, c21 of 2 is connected to the power input end of the contactor box C, and the power output end a22, b22, c22 of the contactor box C is connected to the three-phase winding of the motor M2.

[0031] The internal structure of the contactor box C is shown in Figure 6. The contactor box C has two sets of three-phase power input terminals I1 and I2, two sets of three-phase power output terminals O1 and O2 and several control / status signal terminals C1 and C2; Inside the contactor, the O1 po...

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Abstract

The invention discloses a distribution-typed serial composite dynamic system of electric automobile, which is composed of paralleling inverters [3], [4] and generator G, wherein the two-path motor driving part is composed of inverters [1], [2], contactor box C and generators [M1], [M2]; the inverters [1], [2] connect contact box C and two driving motors [M1] and [M2] through controllable switch; the generating part adopts controllable commutating pattern, which uses the same quantity or more BUCK inverters as topological structure; the control unit IPCU of individual power system controls exchange of generating part and driving part.

Description

technical field [0001] The invention belongs to a serial hybrid power system, in particular to a distributed serial structure hybrid power system of an electric vehicle system. Background technique [0002] The series structure hybrid system includes two forms: centralized series hybrid system and distributed series hybrid system. . Academician Chen Qingquan's monograph "Modern Electric Vehicle Technology" has relevant content. [0003] Figure 1 is a schematic diagram of a centralized series hybrid power system. Through control, the engine 1 drives the generator 2 to generate alternating current, which is converted into direct current by the rectifier 3 to charge the battery 8. At the same time, the motor inverter 4 is driven to convert the direct current into variable frequency Transformed alternating current is used to drive the alternating current motor 5 , and the alternating current electric motor 5 converts electric energy into mechanical energy, and outputs the powe...

Claims

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Application Information

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IPC IPC(8): B60L11/02B60L50/10
CPCY02T10/7241Y02T10/7077Y02T10/7072Y02T10/72
Inventor 温旭辉刘钧华旸
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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